How does the rail work?
Every magnetic dish cloth rail comes with two small counter magnets. Take them off the rail and place them on the outside of the sink, while at the same time attaching the rail from the inside of the sink. Then the magnetismen will go through the sink and you will feel when the magnets on both sides "find each other"! When you have pulled the rail to your preferred place you attach the stickers on the counter magnets under the sink. Then you can actually take off the rail in the sink whenever you want without the small counter magnets falling down and disappearing.